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[kvm-unit-tests PATCH 09/16] arm/arm64: ITS: Enable/Disable LPIs at re-d
From: |
Eric Auger |
Subject: |
[kvm-unit-tests PATCH 09/16] arm/arm64: ITS: Enable/Disable LPIs at re-distributor level |
Date: |
Mon, 16 Dec 2019 15:02:28 +0100 |
This helper function enables or disables the signaling of LPIs
at redistributor level.
Signed-off-by: Eric Auger <address@hidden>
---
lib/arm/asm/gic-v3-its.h | 1 +
lib/arm/gic-v3-its.c | 18 ++++++++++++++++++
2 files changed, 19 insertions(+)
diff --git a/lib/arm/asm/gic-v3-its.h b/lib/arm/asm/gic-v3-its.h
index ed42707..d56a17f 100644
--- a/lib/arm/asm/gic-v3-its.h
+++ b/lib/arm/asm/gic-v3-its.h
@@ -138,6 +138,7 @@ extern struct its_baser *its_lookup_baser(int type);
extern void set_lpi_config(int n, u8 val);
extern u8 get_lpi_config(int n);
extern void set_pending_table_bit(int rdist, int n, bool set);
+extern void gicv3_rdist_ctrl_lpi(u32 redist, bool set);
#endif /* !__ASSEMBLY__ */
#endif /* _ASMARM_GIC_V3_ITS_H_ */
diff --git a/lib/arm/gic-v3-its.c b/lib/arm/gic-v3-its.c
index 8b6a095..b0f7714 100644
--- a/lib/arm/gic-v3-its.c
+++ b/lib/arm/gic-v3-its.c
@@ -225,3 +225,21 @@ void init_cmd_queue(void)
writeq(0, its_data.base + GITS_CWRITER);
writeq(0, its_data.base + GITS_CREADR);
}
+
+void gicv3_rdist_ctrl_lpi(u32 redist, bool set)
+{
+ void *ptr;
+ u64 val;
+
+ if (redist >= nr_cpus)
+ report_abort("%s redist=%d >= cpu_count=%d\n",
+ __func__, redist, nr_cpus);
+
+ ptr = gicv3_data.redist_base[redist];
+ val = readl(ptr + GICR_CTLR);
+ if (set)
+ val |= GICR_CTLR_ENABLE_LPIS;
+ else
+ val &= ~GICR_CTLR_ENABLE_LPIS;
+ writel(val, ptr + GICR_CTLR);
+}
--
2.20.1
- [kvm-unit-tests PATCH 00/16] arm/arm64: Add ITS tests, Eric Auger, 2019/12/16
- [kvm-unit-tests PATCH 01/16] libcflat: Add other size defines, Eric Auger, 2019/12/16
- [kvm-unit-tests PATCH 03/16] arm/arm64: gic: Introduce setup_irq() helper, Eric Auger, 2019/12/16
- [kvm-unit-tests PATCH 04/16] arm/arm64: gicv3: Add some re-distributor defines, Eric Auger, 2019/12/16
- [kvm-unit-tests PATCH 05/16] arm/arm64: ITS: Introspection tests, Eric Auger, 2019/12/16
- [kvm-unit-tests PATCH 06/16] arm/arm64: ITS: Test BASER, Eric Auger, 2019/12/16
- [kvm-unit-tests PATCH 07/16] arm/arm64: ITS: Set the LPI config and pending tables, Eric Auger, 2019/12/16
- [kvm-unit-tests PATCH 09/16] arm/arm64: ITS: Enable/Disable LPIs at re-distributor level,
Eric Auger <=
- [kvm-unit-tests PATCH 10/16] arm/arm64: ITS: its_enable_defaults, Eric Auger, 2019/12/16
- [kvm-unit-tests PATCH 08/16] arm/arm64: ITS: Init the command queue, Eric Auger, 2019/12/16
- [kvm-unit-tests PATCH 12/16] arm/arm64: ITS: commands, Eric Auger, 2019/12/16
- [kvm-unit-tests PATCH 13/16] arm/arm64: ITS: INT functional tests, Eric Auger, 2019/12/16
- [kvm-unit-tests PATCH 14/16] arm/run: Allow Migration tests, Eric Auger, 2019/12/16
- [kvm-unit-tests PATCH 15/16] arm/arm64: ITS: migration tests, Eric Auger, 2019/12/16
- [kvm-unit-tests PATCH 16/16] arm/arm64: ITS: pending table migration test, Eric Auger, 2019/12/16
- [kvm-unit-tests PATCH 11/16] arm/arm64: ITS: Device and collection Initialization, Eric Auger, 2019/12/16